Saw jointer



Nov. 6, 1928.

0. ST. CLAIR ET AL SAW Jonmm Filed Sept. 16. 1926 INVENTOR Oliver551271? and BY B 1?. Watson,

MfMM

ATTORNEYS Patented Nov. 6, 1928.

UNITED sr rss PATENT OFFICE.

OLIVER ST. CLAIR, 01E INDIANAPOLIS, INDIANA, AND BAZEL R. WATSON, OFSNOHO- MISH, WASHINGTON,'ASSIGNOBS TO E. C. ATKINS & COMYANY, FINDIANAPOLIS, INDIANA, A CORPORATION OF IKDIANA.

saw Jom'rnn.

Application filed September is, 1953!} Serial No. 135.737.

The object of our-invention is to produce an efficient jointer by meansof which large saws may be quickly and accurately jointed.

The accompanying; drawingsillustrate our invention.

Fig. 1 is a side elevation of the saw side of our improved jointer; lg.2 an elevation of the opposite side; and 3 perspective views of one ofthe file-shoe elements.

In the drawings indicates the main body of the jointer, a light castingconsider ably longer than it is wide and provided on one face withseveral guide surfaces 11, 11 which are accurately machined so as to alllie in one plane against which the face oi the saw to be jointed willlie.

At the middle, on the back side, body 10 is provided with a pair oftransverse guide ribs 12 upon which is slidably mounted a tile holder 18which may be held in any desired position of adjustment by means of theclamping screw 14. Holder 13 is provided with a pair of separated iilereceiving platforms 15, 15 which are overhung by a flange 16 through themiddle of which is threaded the lile clamping thumb screw 17, thearrangement being such that a file 18 may be clamped upon platforms 15and slightly bowed downwardly at its middle so as to furnish a singlecutting line.

At each end of body 10 we provide a clamping dog 20 provided with a jaw21 and thumb-screw 22 to receive a combination tileshoe 28. Thisfile-shoe 23 is pro-- vided with one smooth face S and one file face Ffor a purpose which will appear. Each dog 20 is conveniently adjust-ablysecured to main body 10 by a clamping thuinl screw 24 which also forms apivot for the dog, the arrangement being such that the tile-shoes 23 maybe set at slight opposite angles to iile 18.

In operation one file-shoe 23 is set With and file 18 will act upon theteeth of the saw to bring their tips to proper rela tive positions,while the rear file shoe 23 rides smoothly upon the saw teeth and servesa curvature gage.

lVe claim as our invention:

i. A saw jointer comprising a rigid main body, a iile holder laterallyadjustable on the main body, and two file-shoe dogs one mounted at eachend of the main body and angularly adjustable thereon, the adjustment ofthe file holder on the main body being independent of the dogs, each ofsaid dogs having; a jaw formed to receive and hold a file-shoe element.

2. A saw jointer comprising a main body, a transverse guide at themiddle of said body, a file holder slidably mounted on said guide andprovided with a pair of separated file platforms and an inwardly actingintermediate clamping. screw, two file-shoe dogs one at each end of themain body and each havin a jaw formed to receive a reversible fileshoe,and two clamping screws, one engaging e ch dog and forming a pivotedclamping support therefor.

In witness whereof, we have hereunto set our hands respectively atSeattle, lVashington, and Indianapolis, Indiana on the 9th day ofAugust, 1926, and the 27th day of July, 1926.

BAZEL R. WATSON. OLIVER ST. CLAIR.

